Sodium sulphate decahydrate

Sodium sulphate decahydrate (CAS 13759-07-4) — formula Na2SO4, molecular weight 142.04; category inorganic chemicals.

Specifications

Where it is used

Documented applications: Uses: CIR ingredient: Sodium Sulfate, It is produced from mineral deposits and may contain the following contaminants: dichromate (less than 0.2%), sodium sulfite, sodium chloride, magnesium chloride, magnesium sulfate, lithium carbonate, lithium sulfate, ferric oxide, cupric chloride, sodium hydrogen sulfate, sodium thiosulfate, and boric acid, [CHEMINFO], Mining [Category: Industry], Textiles (Printing, Dyeing, or Finishing) [Category: Industry], Textile arts [Category: Hobbies], For sodium sulfate (USEPA, OPP Pesticide Code: 005604) there are 0 labels match., SRP: Not registered for current use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., For standardizing dyes, in freezing mixtures, in dying and printing textiles., The anhydrous form for drying organic liquids, in Kjeldahl nitrogen determination, in manufacture of glass, ultramarine, paper pulp., Manufacture of kraft paper, paperboard, and glass, filler in synthetic detergents, sodium salts, ceramic glazes, processing textile fabrics, dyes, tanning, pharmaceuticals, freezing mix, laboratory reagent, food additive., For more Uses (Complete) data for Sodium sulfate (7 total), please visit the HSDB record page., Use Classification: EPA Safer Chemical Functional Use Classes -> Processing Aids and Additives, Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern, Fragrance Ingredients, Food Additives -> COLOUR_RETENTION_AGENT -> JECFA Functional Classes, Cosmetics -> Bulking, Viscosity controlling, Industry Uses: Flux agent, Cleaning agent, Fixing agent (mordant), Stabilizing agent, Reducing agent, Sealant (barrier), Viscosity modifiers, Ion exchange agent, Catalyst, Corrosion inhibitor, Thickening agent, Not Known or Reasonably Ascertainable, Filler, Etching agent, Pigment, Chelating agent, Anti-scaling agent, Intermediate, Flotation agent, Softener and conditioner, Dye, Wetting agent (non-aqueous), Other, Binder, CBI, Lubricating agent, Processing aids not otherwise specified, Surfactant (surface active agent), Plating agent, pH regulating agent, Bleaching agent, Consumer Uses: Swelling agent, Surface modifier, Household Products: Cosmetics product ingredient: Sodium sulfate, Product count: 198, Information on 24 consumer products that contain Sodium sulfate anhydrous in the following categories is provided:, • Inside the Home, Information on 640 consumer products that contain Sodium sulfate in the following categories is provided:, • Auto Products, • Commercial, Institutional, • Home Maintenance, • Landscaping, Yard, • Personal Care, • Pesticides, • Pet Care, Methods of Manufacturing: In Texas, subterranean sulfate brines are pumped to the surface where the brines are first saturated with NaCl before they are cooled by mechanical refrigeration to form Glauber's salt. This salt is then separated from its mother liquor, melted, and dehydrated with mechanical vapor recompression evaporators. Processing at Searles Lake, California, is similar to that of Texas brines. Brine is cooled to 16 °C to remove borax crystals then cooled to 4 °C, which precipitates Glauber's salt. This salt is then separated from its mother liquor, melted in multi-effect vacuum crystallizers to form anhydrous sodium sulfate, and dried. Both processes produce crystals that are 99.3-99.7% pure., The Mannheim process produces sodium sulfate by reaction of sodium chloride and sulfuric acid. This reaction takes place in a fluidized-bed reactor or a specially made furnace called a Mannheim furnace. This method was last used in the United States in the 1980s. In another process, SO2, O2, and H2O react with NaCl. This is called the Hargreaves process. Only a minor amount of sodium sulfate is made in the United States using the Hargreaves process, but both the Hargreaves and the Mannheim processes are used widely in the rest of the world., It is prepared by the neutralization of sulfuric acid with sodium hydroxide., (1) Purification of natural sodium sulfate from deposits and brines, (2) by-product of hydrochloric acid manufacture from salt and sulfuric acid ... (3) by-product of phenol phenol manufacture (caustic fusion process), (4) Hargreaves process., Impurities: Anhydrous: 98% minimum, 0.5% Na2SO3, Formulations, Preparations: SODIUM SULFATE, USP (GLAUBER'S SALT) ..., DECAHYDRATE, Grades: technical, CP, chemically pure, detergent, rayon, glass maker's., Regular grade with a minimum Na2SO4 content of 97%, termed "Salt Cake, " a higher grade, "anhydrous sulfate.", Trona, ACS grade, granular, salt-cake 99.%+% high purity, Consumption Patterns: IN KRAFT PULPING LIQUOR, 49%, FILLER, DILUENT, & PROCESSING AID IN DRY DETERGENTS, 38%, MELTING AID IN FLOAT GLASS PRODUCTION, 7%, OTHER USES, 6% (1980), The manufacture of kraft or brown paper (50% of the US Market), detergents (40%), & glass (8%), (1984), The major end uses of sodium sulphate were detergents, 47%, pulp & paper, 35%, & glass & misc, 18% (1986), The major end uses for sodium sulfate were: pulp & paper, 48%, detergents, 39%, & glass 10% (1982), For more Consumption Patterns (Complete) data for Sodium sulfate (9 total), U.S. Production: 2023: 550, 000, 000 - <700, 000 lb, 2022: 850, 000 - <1, 2021: 700, 000 - <850, 2020: 700, (1978) 1.07X10+12 G, (1982) 7.83X10+11 G, (1986) 7.03X10+11 g, (1990) 1.57 billion lb, For more U.S. Produ.

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What this product is

Sodium sulphate decahydrate is an inorganic compound with CAS registry number 13759-07-4 and molecular formula Na2SO4 (molecular weight 142.04), belonging to the inorganic chemicals segment of chemical raw materials.

Identification

CAS number: 13759-07-4

Its molecular formula Na2SO4 comprises 2 Na, 1 S, 4 O atoms.

Also known as: Sodium sulphate decahydrate · SODIUM SULFATE ANHYDROUS

Category: inorganic chemicals

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